Field of internal waves generated by an iceberg in a pycnocline

The paper presents data of theoretical and experimental (on-site and labora tory) studies of the effect of sea-water density inhomogeneity on the hydro dynamics of drifting icebergs. On the basis of previously obtained theoreti cal relationships, the coefficients of wave resistance are calculated for a body of varying submergence depth that crosses the free surface and the in terface between fluids of different density at relatively small velocities characteristic for the natural conditions of iceberg drift. The modal struc ture and amplitude-phase parameters of internal waves generated by a vertic al cylinder crossing the free surface and the surface pycnocline are studie d as functions of the cylinder's velocity and submergence depth relative to a density jump.